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Old 19th May 2005, 07:43 PM   #1
SSassen is offline SSassen  Netherlands
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Default Elektuur/Elektor piezo feedback subwoofer amp

I can remember reading an article in the Dutch Elektuur magazine somewhere in the early '90s describing a project using a piezo tweeter with added weight mounted to a woofer cone to couple the actual woofer output back to the amplifier and as such compensate any non-linear behaviour etc.

Does anybody still have that Elektuur? I'd be very interested in having a copy of that article, I'd even go as far as to pay any postage fees.

Best regards,

Sander Sassen
http://www.hardwareanalysis.com
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Old 19th May 2005, 11:05 PM   #2
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Urrgh! what a yukky way to measure acceleration, when there's a plethora of micromachined accelerometers out in the market . Have a look at www.freescale.com.
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Old 20th May 2005, 12:19 AM   #3
moamps is offline moamps  Croatia
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Default Re: Elektuur/Elektor piezo feedback subwoofer amp

Quote:
Originally posted by SSassen
.... I'd be very interested in having a copy of that article...
Hi,

go to:

http://www.mfbfreaks.nl/

then

Zelfbouw MFB info

then

Elektuur 1986 NL

Doubleclick each picture to open and then
save them on your disc.

Regards,
Milan
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Old 20th May 2005, 06:14 AM   #4
Electrons are yellow and more is better!
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Default Re: Elektuur/Elektor piezo feedback subwoofer amp

Quote:
Originally posted by SSassen
I can remember reading an article in the Dutch Elektuur magazine somewhere in the early '90s describing a project using a piezo tweeter with added weight mounted to a woofer cone to couple the actual woofer output back to the amplifier and as such compensate any non-linear behaviour etc.

Does anybody still have that Elektuur? I'd be very interested in having a copy of that article, I'd even go as far as to pay any postage fees.
I have this article and I have also started a project.... long time ago. With a 5" wideband speaker it worked pretty good and the real object was 12" Sinus (Sweden) woofer. Unfortunately the project went cold.
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Old 20th May 2005, 08:38 AM   #5
SSassen is offline SSassen  Netherlands
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Thanks Milan et al, that was most helpful.

Best regards,

Sander Sassen
http://www.hardwareanalysis.com
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Old 20th May 2005, 09:34 AM   #6
Electrons are yellow and more is better!
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Sander check here.
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